Licensed Plumber Required

Sewer Line Replacement Cost in Saint Louis, MO

Galvanized – 1 Bath (Pre-1980)

The average cost of sewer line replacement in Saint Louis, MO with Galvanized Steel pipes (1-bath, 900 sq ft) is $6,310, with most homeowners paying between $5,240 and $7,700 depending on access difficulty, permit requirements, and contractor availability.

Cost Breakdown - Saint Louis, MO

Parts & Materials
$3,190
Galvanized Steel profile
Labor
$2,640
22 hrs x $102/hr
Permits & Misc
$480
permits, disposal, parts
Total Estimate
$6,310
Range: $5,240-$7,700

* Estimates based on Saint Louis area labor rates ($102/hr). Actual costs vary. Get 3 quotes.

Home Profile

Pipe Material
Galvanized Steel
Bathrooms
1 Bath
Home Size
900 sq ft
Local Labor Rate
$102/hr

Signs You Need This Service

  • !Recurring sewer backups despite repeated cleaning
  • !Sewer line over 40 years old
  • !Tree root intrusion confirmed on camera
  • !Collapsed or offset pipe sections
  • !Escalating repair costs with no lasting fix

What is Included

  • +Full camera inspection and mapping
  • +Excavate full sewer line length
  • +Remove old clay, cast iron, or Orangeburg pipe
  • +Install new PVC or HDPE sewer line
  • +Backfill and restore landscaping
  • +Permit, inspection, and city approval

Ready to Hire a Plumber in Saint Louis?

Use this estimate as your baseline. Get at least 3 quotes and ask each plumber to itemize parts, labor, and permits separately.

Fair range: $5,240 to $7,700

Compare Quotes from Top-Rated Plumbers via Angi

Frequently Asked Questions

How much does sewer line replacement cost in Saint Louis, MO?

The average cost of sewer line replacement in Saint Louis, MO is $6,310, with most homeowners paying between $5,240 and $7,700 depending on home conditions and contractor availability.

How long does sewer line replacement take?

Most sewer line replacement jobs take 22.0 hours for a 1-bathroom home with Galvanized Steel pipes. Complex jobs or older homes may require additional time.

Can I do sewer line replacement myself?

This job requires a licensed plumber due to permit requirements, complexity, or safety considerations.

What affects sewer line replacement cost in Saint Louis?

Key cost factors include pipe material (Galvanized Steel), home size (900 sq ft, 1 baths), local labor rates ($102/hr in Saint Louis), and permit fees.

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